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drm/ingenic: Set DMA descriptor chain address in probe 

The address of the DMA descriptor never changes. It can therefore be set
in the probe function.

v2-v3: No change

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200716163846.174790-6-paul@crapouillou.net
This commit is contained in:
Paul Cercueil 2020-07-16 18:38:40 +02:00
parent 1f7596f4ad
commit e5507d2c01
No known key found for this signature in database
GPG Key ID: 73EE6BD2274ABD41
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/ingenic/ingenic-drm-drv.c
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@ -358,8 +358,6 @@ static void ingenic_drm_crtc_atomic_flush(struct drm_crtc *crtc,
ingenic_drm_crtc_update_ctrl(priv, finfo);
clk_set_rate(priv->pix_clk, state->adjusted_mode.clock * 1000);
regmap_write(priv->map, JZ_REG_LCD_DA0, priv->dma_hwdesc->next);
}
if (event) {
@ -757,6 +755,9 @@ static int ingenic_drm_probe(struct platform_device *pdev)
}
}
/* Set address of our DMA descriptor chain */
regmap_write(priv->map, JZ_REG_LCD_DA0, priv->dma_hwdesc_phys);
ret = drm_dev_register(drm, 0);
if (ret) {
dev_err(dev, "Failed to register DRM driver\n");